All peptides are available — not all are listed publicly. Contact info@covalentbio.ca
Immune· Lyophilized vial

Glutathione

γ-Glu-Cys-Gly · 307 Da
$ 149.99
24/7 customer supportLab-tested for purity & identityShips from Canada within 24 hoursFree Xpresspost on orders $300+

About Glutathione

Glutathione is a powerful antioxidant peptide that protects cells from oxidative stress and supports detoxification. It helps brighten the skin, strengthen immune function, and improve liver health by neutralizing free radicals and supporting cellular repair. Glutathione supplementation promotes clearer skin, enhanced energy, better recovery, and long-term longevity by keeping cells healthy and resilient.

Product Info

Molecular formula: C10H17N3O6S
Molecular weight: 307.32
Purity: 99%+
Sequence: γ-Glu-Cys-Gly

Product info

Sequence / structure
γ-Glu-Cys-Gly
Molecular weight
307 Da
Purity
≥ 99.0% HPLC-MS
Format
Lyophilized vial
Recommended solvent
Bacteriostatic water (0.9% benzyl alcohol)
Use
Research only — not for human consumption

Disclaimer: All peptides are for laboratory research use only. Not for human consumption. Use only as accepted in the law per the jurisdiction of use.

What are peptides?

Peptides are short chains of amino acids that act as signalling molecules within the body. They are involved in a wide range of biological processes — cellular communication, hormone regulation, tissue repair, immune response, and pathway modulation.

In research settings, peptides are studied for their ability to interact with specific receptor families, modulating cell-signalling pathways, and informing the development of new diagnostic and therapeutic tools.

All peptides sold by Covalent Bio are sold strictly for in-vitro and in-vivo laboratory research use only — and are not approved for human consumption.

Usage & Storage

All peptides are supplied in lyophilized (freeze-dried) form to ensure long-term stability during storage and shipping.

Unreconstituted vials should be stored in a cool, dry place away from direct light. For extended storage (> 30 days), refrigeration at 2–8 °C is recommended; for > 90 days, freeze at −20 °C.

Once reconstituted for research purposes, peptides should be kept refrigerated and handled using sterile laboratory practices. Use within 28 days, or aliquot and freeze at −20 °C.

Shipping & Delivery

All orders are shipped directly from our Canadian fulfillment centre within 24 hours (Monday–Friday). Delivery takes 1–3 business days to major metros, 3–5 days to remote regions, via Canada Post Xpresspost.

Free Xpresspost shipping on orders $300 CAD and up.

Payment Information

We accept Interac e-Transfer (5% discount), all major credit cards via Stripe, and cryptocurrency (8% discount via BTCPay).

Wholesale orders over $2,500 CAD: domestic Canadian wire transfer available.

Vial Specifications
  • GlassType I borosilicate
  • Closure20mm aluminum crimp · butyl rubber stopper · matte white flip-off cap
  • Capacity3 ml nominal (vial format)
  • SterilizationGamma-irradiated, USP <1207> compliant
  • Fill stateLyophilized under nitrogen atmosphere
CoA & Lab Reports

Every batch is tested by an accredited third-party lab. Each shipment includes a Certificate of Analysis (CoA) emailed the day your order ships, including HPLC purity (≥ 99.0%), mass spectrometry sequence confirmation, residual solvent screen, water content (Karl Fischer), and endotoxin (LAL).